If the wiring shown in the table below is incorrect, please let us know.
There is no general consensus in the industry about the usage of A and B for the RS485 polarity, so it may be counterintuitive and opposite of what you might expect for some devices.
You MUST give each device on the RS485 bus a unique address. Check the manual of the device on how to do this.
Use lower addresses first (1, 2, ...) because the SmartgridOneController will find them faster!
For each device, it is generally recommended to stick with the factory default baud rate, parity, and stop bits. The SmartgridOneController will scan on those first.
Open the SmartgridOneController commissioning interface.
Go to Devices → Add device.
Select the connection type RS485.
Choose Fairland Inverx Hybrid Inverter RTU from the device list.
The controller will automatically scan for the device using the default settings (9600 baud, 8N1).
If the device is not found automatically, set the Modbus address manually.
(Optional) Set the number of PV strings (MPPT inputs) connected — enter a value between 1 and 4. Leave blank to use the default (4).
(Optional) Set the number of battery packs installed — enter a value between 1 and 32. Leave blank to use the default (1).
Save and apply the configuration.
Note
Note
Setting the correct PV string count prevents the controller from polling unused MPPT inputs. If fewer strings are physically connected than the default of 4, the controller verifies each string by reading its voltage on first connection.
Grid: active power (import/export in W), phase voltages (L1/L2/L3), frequency
PV: power per MPPT string and total PV power
Battery: voltage, current, state of charge (SOC), state of health (SOH), power
Note
Note
If no battery is physically installed, the controller will display a "No battery detected by inverter" warning. This is expected behaviour — the inverter reports battery type code 100 (no battery) and the controller suppresses battery metrics accordingly.
Battery type always returns code 1080. The inverter consistently reports battery type 1080, which is not documented in the official Modbus protocol. This is a known hardware/firmware bug and does not affect operation — the controller uses voltage and SOC values to confirm battery presence instead.
Note
Note
Per-string PV power is calculated, not measured. There is no dedicated power register per MPPT string. Power is derived as voltage × current for each string.